<?php
/**
* SimplePie
*
* A PHP-Based RSS and Atom Feed Framework.
* Takes the hard work out of managing a complete RSS/Atom solution.
*
* Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* * Neither the name of the SimplePie Team nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
* AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @package SimplePie
* @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
* @author Ryan Parman
* @author Sam Sneddon
* @author Ryan McCue
* @link http://simplepie.org/ SimplePie
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
*/
namespace SimplePie;
use SimplePie\XML\Declaration\Parser;
/**
* Miscellaneous utilities
*
* @package SimplePie
*/
class Misc
{
private static $SIMPLEPIE_BUILD = null;
public static function time_hms($seconds)
{
$time = '';
$hours = floor($seconds / 3600);
$remainder = $seconds % 3600;
if ($hours > 0) {
$time .= $hours.':';
}
$minutes = floor($remainder / 60);
$seconds = $remainder % 60;
if ($minutes < 10 && $hours > 0) {
$minutes = '0' . $minutes;
}
if ($seconds < 10) {
$seconds = '0' . $seconds;
}
$time .= $minutes.':';
$time .= $seconds;
return $time;
}
public static function absolutize_url($relative, $base)
{
$iri = \SimplePie\IRI::absolutize(new \SimplePie\IRI($base), $relative);
if ($iri === false) {
return false;
}
return $iri->get_uri();
}
/**
* Get a HTML/XML element from a HTML string
*
* @deprecated since SimplePie 1.3, use DOMDocument instead (parsing HTML with regex is bad!)
* @param string $realname Element name (including namespace prefix if applicable)
* @param string $string HTML document
* @return array
*/
public static function get_element($realname, $string)
{
// trigger_error(sprintf('Using method "' . __METHOD__ . '" is deprecated since SimplePie 1.3, use "DOMDocument" instead.'), \E_USER_DEPRECATED);
$return = [];
$name = preg_quote($realname, '/');
if (preg_match_all("/<($name)" . \SimplePie\SimplePie::PCRE_HTML_ATTRIBUTE . "(>(.*)<\/$name>|(\/)?>)/siU", $string, $matches, PREG_SET_ORDER | PREG_OFFSET_CAPTURE)) {
for ($i = 0, $total_matches = count($matches); $i < $total_matches; $i++) {
$return[$i]['tag'] = $realname;
$return[$i]['full'] = $matches[$i][0][0];
$return[$i]['offset'] = $matches[$i][0][1];
if (strlen($matches[$i][3][0]) <= 2) {
$return[$i]['self_closing'] = true;
} else {
$return[$i]['self_closing'] = false;
$return[$i]['content'] = $matches[$i][4][0];
}
$return[$i]['attribs'] = [];
if (isset($matches[$i][2][0]) && preg_match_all('/[\x09\x0A\x0B\x0C\x0D\x20]+([^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*)(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:"([^"]*)"|\'([^\']*)\'|([^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?/', ' ' . $matches[$i][2][0] . ' ', $attribs, PREG_SET_ORDER)) {
for ($j = 0, $total_attribs = count($attribs); $j < $total_attribs; $j++) {
if (count($attribs[$j]) === 2) {
$attribs[$j][2] = $attribs[$j][1];
}
$return[$i]['attribs'][strtolower($attribs[$j][1])]['data'] = Misc::entities_decode(end($attribs[$j]));
}
}
}
}
return $return;
}
public static function element_implode($element)
{
$full = "<$element[tag]";
foreach ($element['attribs'] as $key => $value) {
$key = strtolower($key);
$full .= " $key=\"" . htmlspecialchars($value['data'], ENT_COMPAT, 'UTF-8') . '"';
}
if ($element['self_closing']) {
$full .= ' />';
} else {
$full .= ">$element[content]</$element[tag]>";
}
return $full;
}
public static function error($message, $level, $file, $line)
{
if ((error_reporting() & $level) > 0) {
switch ($level) {
case E_USER_ERROR:
$note = 'PHP Error';
break;
case E_USER_WARNING:
$note = 'PHP Warning';
break;
case E_USER_NOTICE:
$note = 'PHP Notice';
break;
default:
$note = 'Unknown Error';
break;
}
$log_error = true;
if (!function_exists('error_log')) {
$log_error = false;
}
$log_file = @ini_get('error_log');
if (!empty($log_file) && ('syslog' !== $log_file) && !@is_writable($log_file)) {
$log_error = false;
}
if ($log_error) {
@error_log("$note: $message in $file on line $line", 0);
}
}
return $message;
}
public static function fix_protocol($url, $http = 1)
{
$url = Misc::normalize_url($url);
$parsed = Misc::parse_url($url);
if ($parsed['scheme'] !== '' && $parsed['scheme'] !== 'http' && $parsed['scheme'] !== 'https') {
return Misc::fix_protocol(Misc::compress_parse_url('http', $parsed['authority'], $parsed['path'], $parsed['query'], $parsed['fragment']), $http);
}
if ($parsed['scheme'] === '' && $parsed['authority'] === '' && !file_exists($url)) {
return Misc::fix_protocol(Misc::compress_parse_url('http', $parsed['path'], '', $parsed['query'], $parsed['fragment']), $http);
}
if ($http === 2 && $parsed['scheme'] !== '') {
return "feed:$url";
} elseif ($http === 3 && strtolower($parsed['scheme']) === 'http') {
return substr_replace($url, 'podcast', 0, 4);
} elseif ($http === 4 && strtolower($parsed['scheme']) === 'http') {
return substr_replace($url, 'itpc', 0, 4);
}
return $url;
}
/**
* @deprecated since SimplePie 1.8.0, use PHP native array_replace_recursive() instead.
*/
public static function array_merge_recursive($array1, $array2)
{
foreach ($array2 as $key => $value) {
if (is_array($value)) {
$array1[$key] = Misc::array_merge_recursive($array1[$key], $value);
} else {
$array1[$key] = $value;
}
}
return $array1;
}
public static function parse_url($url)
{
$iri = new \SimplePie\IRI($url);
return [
'scheme' => (string) $iri->scheme,
'authority' => (string) $iri->authority,
'path' => (string) $iri->path,
'query' => (string) $iri->query,
'fragment' => (string) $iri->fragment
];
}
public static function compress_parse_url($scheme = '', $authority = '', $path = '', $query = '', $fragment = '')
{
$iri = new \SimplePie\IRI('');
$iri->scheme = $scheme;
$iri->authority = $authority;
$iri->path = $path;
$iri->query = $query;
$iri->fragment = $fragment;
return $iri->get_uri();
}
public static function normalize_url($url)
{
$iri = new \SimplePie\IRI($url);
return $iri->get_uri();
}
public static function percent_encoding_normalization($match)
{
$integer = hexdec($match[1]);
if ($integer >= 0x41 && $integer <= 0x5A || $integer >= 0x61 && $integer <= 0x7A || $integer >= 0x30 && $integer <= 0x39 || $integer === 0x2D || $integer === 0x2E || $integer === 0x5F || $integer === 0x7E) {
return chr($integer);
}
return strtoupper($match[0]);
}
/**
* Converts a Windows-1252 encoded string to a UTF-8 encoded string
*
* @static
* @param string $string Windows-1252 encoded string
* @return string UTF-8 encoded string
*/
public static function windows_1252_to_utf8($string)
{
static $convert_table = ["\x80" => "\xE2\x82\xAC", "\x81" => "\xEF\xBF\xBD", "\x82" => "\xE2\x80\x9A", "\x83" => "\xC6\x92", "\x84" => "\xE2\x80\x9E", "\x85" => "\xE2\x80\xA6", "\x86" => "\xE2\x80\xA0", "\x87" => "\xE2\x80\xA1", "\x88" => "\xCB\x86", "\x89" => "\xE2\x80\xB0", "\x8A" => "\xC5\xA0", "\x8B" => "\xE2\x80\xB9", "\x8C" => "\xC5\x92", "\x8D" => "\xEF\xBF\xBD", "\x8E" => "\xC5\xBD", "\x8F" => "\xEF\xBF\xBD", "\x90" => "\xEF\xBF\xBD", "\x91" => "\xE2\x80\x98", "\x92" => "\xE2\x80\x99", "\x93" => "\xE2\x80\x9C", "\x94" => "\xE2\x80\x9D", "\x95" => "\xE2\x80\xA2", "\x96" => "\xE2\x80\x93", "\x97" => "\xE2\x80\x94", "\x98" => "\xCB\x9C", "\x99" => "\xE2\x84\xA2", "\x9A" => "\xC5\xA1", "\x9B" => "\xE2\x80\xBA", "\x9C" => "\xC5\x93", "\x9D" => "\xEF\xBF\xBD", "\x9E" => "\xC5\xBE", "\x9F" => "\xC5\xB8", "\xA0" => "\xC2\xA0", "\xA1" => "\xC2\xA1", "\xA2" => "\xC2\xA2", "\xA3" => "\xC2\xA3", "\xA4" => "\xC2\xA4", "\xA5" => "\xC2\xA5", "\xA6" => "\xC2\xA6", "\xA7" => "\xC2\xA7", "\xA8" => "\xC2\xA8", "\xA9" => "\xC2\xA9", "\xAA" => "\xC2\xAA", "\xAB" => "\xC2\xAB", "\xAC" => "\xC2\xAC", "\xAD" => "\xC2\xAD", "\xAE" => "\xC2\xAE", "\xAF" => "\xC2\xAF", "\xB0" => "\xC2\xB0", "\xB1" => "\xC2\xB1", "\xB2" => "\xC2\xB2", "\xB3" => "\xC2\xB3", "\xB4" => "\xC2\xB4", "\xB5" => "\xC2\xB5", "\xB6" => "\xC2\xB6", "\xB7" => "\xC2\xB7", "\xB8" => "\xC2\xB8", "\xB9" => "\xC2\xB9", "\xBA" => "\xC2\xBA", "\xBB" => "\xC2\xBB", "\xBC" => "\xC2\xBC", "\xBD" => "\xC2\xBD", "\xBE" => "\xC2\xBE", "\xBF" => "\xC2\xBF", "\xC0" => "\xC3\x80", "\xC1" => "\xC3\x81", "\xC2" => "\xC3\x82", "\xC3" => "\xC3\x83", "\xC4" => "\xC3\x84", "\xC5" => "\xC3\x85", "\xC6" => "\xC3\x86", "\xC7" => "\xC3\x87", "\xC8" => "\xC3\x88", "\xC9" => "\xC3\x89", "\xCA" => "\xC3\x8A", "\xCB" => "\xC3\x8B", "\xCC" => "\xC3\x8C", "\xCD" => "\xC3\x8D", "\xCE" => "\xC3\x8E", "\xCF" => "\xC3\x8F", "\xD0" => "\xC3\x90", "\xD1" => "\xC3\x91", "\xD2" => "\xC3\x92", "\xD3" => "\xC3\x93", "\xD4" => "\xC3\x94", "\xD5" => "\xC3\x95", "\xD6" => "\xC3\x96", "\xD7" => "\xC3\x97", "\xD8" => "\xC3\x98", "\xD9" => "\xC3\x99", "\xDA" => "\xC3\x9A", "\xDB" => "\xC3\x9B", "\xDC" => "\xC3\x9C", "\xDD" => "\xC3\x9D", "\xDE" => "\xC3\x9E", "\xDF" => "\xC3\x9F", "\xE0" => "\xC3\xA0", "\xE1" => "\xC3\xA1", "\xE2" => "\xC3\xA2", "\xE3" => "\xC3\xA3", "\xE4" => "\xC3\xA4", "\xE5" => "\xC3\xA5", "\xE6" => "\xC3\xA6", "\xE7" => "\xC3\xA7", "\xE8" => "\xC3\xA8", "\xE9" => "\xC3\xA9", "\xEA" => "\xC3\xAA", "\xEB" => "\xC3\xAB", "\xEC" => "\xC3\xAC", "\xED" => "\xC3\xAD", "\xEE" => "\xC3\xAE", "\xEF" => "\xC3\xAF", "\xF0" => "\xC3\xB0", "\xF1" => "\xC3\xB1", "\xF2" => "\xC3\xB2", "\xF3" => "\xC3\xB3", "\xF4" => "\xC3\xB4", "\xF5" => "\xC3\xB5", "\xF6" => "\xC3\xB6", "\xF7" => "\xC3\xB7", "\xF8" => "\xC3\xB8", "\xF9" => "\xC3\xB9", "\xFA" => "\xC3\xBA", "\xFB" => "\xC3\xBB", "\xFC" => "\xC3\xBC", "\xFD" => "\xC3\xBD", "\xFE" => "\xC3\xBE", "\xFF" => "\xC3\xBF"];
return strtr($string, $convert_table);
}
/**
* Change a string from one encoding to another
*
* @param string $data Raw data in $input encoding
* @param string $input Encoding of $data
* @param string $output Encoding you want
* @return string|boolean False if we can't convert it
*/
public static function change_encoding($data, $input, $output)
{
$input = Misc::encoding($input);
$output = Misc::encoding($output);
// We fail to fail on non US-ASCII bytes
if ($input === 'US-ASCII') {
static $non_ascii_octects = '';
if (!$non_ascii_octects) {
for ($i = 0x80; $i <= 0xFF; $i++) {
$non_ascii_octects .= chr($i);
}
}
$data = substr($data, 0, strcspn($data, $non_ascii_octects));
}
// This is first, as behaviour of this is completely predictable
if ($input === 'windows-1252' && $output === 'UTF-8') {
return Misc::windows_1252_to_utf8($data);
}
// This is second, as behaviour of this varies only with PHP version (the middle part of this expression checks the encoding is supported).
elseif (function_exists('mb_convert_encoding') && ($return = Misc::change_encoding_mbstring($data, $input, $output))) {
return $return;
}
// This is third, as behaviour of this varies with OS userland and PHP version
elseif (function_exists('iconv') && ($return = Misc::change_encoding_iconv($data, $input, $output))) {
return $return;
}
// This is last, as behaviour of this varies with OS userland and PHP version
elseif (class_exists('\UConverter') && ($return = Misc::change_encoding_uconverter($data, $input, $output))) {
return $return;
}
// If we can't do anything, just fail
return false;
}
protected static function change_encoding_mbstring($data, $input, $output)
{
if ($input === 'windows-949') {
$input = 'EUC-KR';
}
if ($output === 'windows-949') {
$output = 'EUC-KR';
}
if ($input === 'Windows-31J') {
$input = 'SJIS';
}
if ($output === 'Windows-31J') {
$output = 'SJIS';
}
// Check that the encoding is supported
if (!in_array($input, mb_list_encodings())) {
return false;
}
if (@mb_convert_encoding("\x80", 'UTF-16BE', $input) === "\x00\x80") {
return false;
}
// Let's do some conversion
if ($return = @mb_convert_encoding($data, $output, $input)) {
return $return;
}
return false;
}
protected static function change_encoding_iconv($data, $input, $output)
{
return @iconv($input, $output, $data);
}
/**
* @param string $data
* @param string $input
* @param string $output
* @return string|false
*/
protected static function change_encoding_uconverter($data, $input, $output)
{
return @\UConverter::transcode($data, $output, $input);
}
/**
* Normalize an encoding name
*
* This is automatically generated by create.php
*
* To generate it, run `php create.php` on the command line, and copy the
* output to replace this function.
*
* @param string $charset Character set to standardise
* @return string Standardised name
*/
public static function encoding($charset)
{
// Normalization from UTS #22
switch (strtolower(preg_replace('/(?:[^a-zA-Z0-9]+|([^0-9])0+)/', '\1', $charset))) {
case 'adobestandardencoding':
case 'csadobestandardencoding':
return 'Adobe-Standard-Encoding';
case 'adobesymbolencoding':
case 'cshppsmath':
return 'Adobe-Symbol-Encoding';
case 'ami1251':
case 'amiga1251':
return 'Amiga-1251';
case 'ansix31101983':
case 'csat5001983':
case 'csiso99naplps':
case 'isoir99':
case 'naplps':
return 'ANSI_X3.110-1983';
case 'arabic7':
case 'asmo449':
case 'csiso89asmo449':
case 'iso9036':
case 'isoir89':
return 'ASMO_449';
case 'big5':
case 'csbig5':
return 'Big5';
case 'big5hkscs':
return 'Big5-HKSCS';
case 'bocu1':
case 'csbocu1':
return 'BOCU-1';
case 'brf':
case 'csbrf':
return 'BRF';
case 'bs4730':
case 'csiso4unitedkingdom':
case 'gb':
case 'iso646gb':
case 'isoir4':
case 'uk':
return 'BS_4730';
case 'bsviewdata':
case 'csiso47bsviewdata':
case 'isoir47':
return 'BS_viewdata';
case 'cesu8':
case 'cscesu8':
return 'CESU-8';
case 'ca':
case 'csa71':
case 'csaz243419851':
case 'csiso121canadian1':
case 'iso646ca':
case 'isoir121':
return 'CSA_Z243.4-1985-1';
case 'csa72':
case 'csaz243419852':
case 'csiso122canadian2':
case 'iso646ca2':
case 'isoir122':
return 'CSA_Z243.4-1985-2';
case 'csaz24341985gr':
case 'csiso123csaz24341985gr':
case 'isoir123':
return 'CSA_Z243.4-1985-gr';
case 'csiso139csn369103':
case 'csn369103':
case 'isoir139':
return 'CSN_369103';
case 'csdecmcs':
case 'dec':
case 'decmcs':
return 'DEC-MCS';
case 'csiso21german':
case 'de':
case 'din66003':
case 'iso646de':
case 'isoir21':
return 'DIN_66003';
case 'csdkus':
case 'dkus':
return 'dk-us';
case 'csiso646danish':
case 'dk':
case 'ds2089':
case 'iso646dk':
return 'DS_2089';
case 'csibmebcdicatde':
case 'ebcdicatde':
return 'EBCDIC-AT-DE';
case 'csebcdicatdea':
case 'ebcdicatdea':
return 'EBCDIC-AT-DE-A';
case 'csebcdiccafr':
case 'ebcdiccafr':
return 'EBCDIC-CA-FR';
case 'csebcdicdkno':
case 'ebcdicdkno':
return 'EBCDIC-DK-NO';
case 'csebcdicdknoa':
case 'ebcdicdknoa':
return 'EBCDIC-DK-NO-A';
case 'csebcdices':
case 'ebcdices':
return 'EBCDIC-ES';
case 'csebcdicesa':
case 'ebcdicesa':
return 'EBCDIC-ES-A';
case 'csebcdicess':
case 'ebcdicess':
return 'EBCDIC-ES-S';
case 'csebcdicfise':
case 'ebcdicfise':
return 'EBCDIC-FI-SE';
case 'csebcdicfisea':
case 'ebcdicfisea':
return 'EBCDIC-FI-SE-A';
case 'csebcdicfr':
case 'ebcdicfr':
return 'EBCDIC-FR';
case 'csebcdicit':
case 'ebcdicit':
return 'EBCDIC-IT';
case 'csebcdicpt':
case 'ebcdicpt':
return 'EBCDIC-PT';
case 'csebcdicuk':
case 'ebcdicuk':
return 'EBCDIC-UK';
case 'csebcdicus':
case 'ebcdicus':
return 'EBCDIC-US';
case 'csiso111ecmacyrillic':
case 'ecmacyrillic':
case 'isoir111':
case 'koi8e':
return 'ECMA-cyrillic';
case 'csiso17spanish':
case 'es':
case 'iso646es':
case 'isoir17':
return 'ES';
case 'csiso85spanish2':
case 'es2':
case 'iso646es2':
case 'isoir85':
return 'ES2';
case 'cseucpkdfmtjapanese':
case 'eucjp':
case 'extendedunixcodepackedformatforjapanese':
return 'EUC-JP';
case 'cseucfixwidjapanese':
case 'extendedunixcodefixedwidthforjapanese':
return 'Extended_UNIX_Code_Fixed_Width_for_Japanese';
case 'gb18030':
return 'GB18030';
case 'chinese':
case 'cp936':
case 'csgb2312':
case 'csiso58gb231280':
case 'gb2312':
case 'gb231280':
case 'gbk':
case 'isoir58':
case 'ms936':
case 'windows936':
return 'GBK';
case 'cn':
case 'csiso57gb1988':
case 'gb198880':
case 'iso646cn':
case 'isoir57':
return 'GB_1988-80';
case 'csiso153gost1976874':
case 'gost1976874':
case 'isoir153':
case 'stsev35888':
return 'GOST_19768-74';
case 'csiso150':
case 'csiso150greekccitt':
case 'greekccitt':
case 'isoir150':
return 'greek-ccitt';
case 'csiso88greek7':
case 'greek7':
case 'isoir88':
return 'greek7';
case 'csiso18greek7old':
case 'greek7old':
case 'isoir18':
return 'greek7-old';
case 'cshpdesktop':
case 'hpdesktop':
return 'HP-DeskTop';
case 'cshplegal':
case 'hplegal':
return 'HP-Legal';
case 'cshpmath8':
case 'hpmath8':
return 'HP-Math8';
case 'cshppifont':
case 'hppifont':
return 'HP-Pi-font';
case 'cshproman8':
case 'hproman8':
case 'r8':
case 'roman8':
return 'hp-roman8';
case 'hzgb2312':
return 'HZ-GB-2312';
case 'csibmsymbols':
case 'ibmsymbols':
return 'IBM-Symbols';
case 'csibmthai':
case 'ibmthai':
return 'IBM-Thai';
case 'cp37':
case 'csibm37':
case 'ebcdiccpca':
case 'ebcdiccpnl':
case 'ebcdiccpus':
case 'ebcdiccpwt':
case 'ibm37':
return 'IBM037';
case 'cp38':
case 'csibm38':
case 'ebcdicint':
case 'ibm38':
return 'IBM038';
case 'cp273':
case 'csibm273':
case 'ibm273':
return 'IBM273';
case 'cp274':
case 'csibm274':
case 'ebcdicbe':
case 'ibm274':
return 'IBM274';
case 'cp275':
case 'csibm275':
case 'ebcdicbr':
case 'ibm275':
return 'IBM275';
case 'csibm277':
case 'ebcdiccpdk':
case 'ebcdiccpno':
case 'ibm277':
return 'IBM277';
case 'cp278':
case 'csibm278':
case 'ebcdiccpfi':
case 'ebcdiccpse':
case 'ibm278':
return 'IBM278';
case 'cp280':
case 'csibm280':
case 'ebcdiccpit':
case 'ibm280':
return 'IBM280';
case 'cp281':
case 'csibm281':
case 'ebcdicjpe':
case 'ibm281':
return 'IBM281';
case 'cp284':
case 'csibm284':
case 'ebcdiccpes':
case 'ibm284':
return 'IBM284';
case 'cp285':
case 'csibm285':
case 'ebcdiccpgb':
case 'ibm285':
return 'IBM285';
case 'cp290':
case 'csibm290':
case 'ebcdicjpkana':
case 'ibm290':
return 'IBM290';
case 'cp297':
case 'csibm297':
case 'ebcdiccpfr':
case 'ibm297':
return 'IBM297';
case 'cp420':
case 'csibm420':
case 'ebcdiccpar1':
case 'ibm420':
return 'IBM420';
case 'cp423':
case 'csibm423':
case 'ebcdiccpgr':
case 'ibm423':
return 'IBM423';
case 'cp424':
case 'csibm424':
case 'ebcdiccphe':
case 'ibm424':
return 'IBM424';
case '437':
case 'cp437':
case 'cspc8codepage437':
case 'ibm437':
return 'IBM437';
case 'cp500':
case 'csibm500':
case 'ebcdiccpbe':
case 'ebcdiccpch':
case 'ibm500':
return 'IBM500';
case 'cp775':
case 'cspc775baltic':
case 'ibm775':
return 'IBM775';
case '850':
case 'cp850':
case 'cspc850multilingual':
case 'ibm850':
return 'IBM850';
case '851':
case 'cp851':
case 'csibm851':
case 'ibm851':
return 'IBM851';
case '852':
case 'cp852':
case 'cspcp852':
case 'ibm852':
return 'IBM852';
case '855':
case 'cp855':
case 'csibm855':
case 'ibm855':
return 'IBM855';
case '857':
case 'cp857':
case 'csibm857':
case 'ibm857':
return 'IBM857';
case 'ccsid858':
case 'cp858':
case 'ibm858':
case 'pcmultilingual850euro':
return 'IBM00858';
case '860':
case 'cp860':
case 'csibm860':
case 'ibm860':
return 'IBM860';
case '861':
case 'cp861':
case 'cpis':
case 'csibm861':
case 'ibm861':
return 'IBM861';
case '862':
case 'cp862':
case 'cspc862latinhebrew':
case 'ibm862':
return 'IBM862';
case '863':
case 'cp863':
case 'csibm863':
case 'ibm863':
return 'IBM863';
case 'cp864':
case 'csibm864':
case 'ibm864':
return 'IBM864';
case '865':
case 'cp865':
case 'csibm865':
case 'ibm865':
return 'IBM865';
case '866':
case 'cp866':
case 'csibm866':
case 'ibm866':
return 'IBM866';
case 'cp868':
case 'cpar':
case 'csibm868':
case 'ibm868':
return 'IBM868';
case '869':
case 'cp869':
case 'cpgr':
case 'csibm869':
case 'ibm869':
return 'IBM869';
case 'cp870':
case 'csibm870':
case 'ebcdiccproece':
case 'ebcdiccpyu':
case 'ibm870':
return 'IBM870';
case 'cp871':
case 'csibm871':
case 'ebcdiccpis':
case 'ibm871':
return 'IBM871';
case 'cp880':
case 'csibm880':
case 'ebcdiccyrillic':
case 'ibm880':
return 'IBM880';
case 'cp891':
case 'csibm891':
case 'ibm891':
return 'IBM891';
case 'cp903':
case 'csibm903':
case 'ibm903':
return 'IBM903';
case '904':
case 'cp904':
case 'csibbm904':
case 'ibm904':
return 'IBM904';
case 'cp905':
case 'csibm905':
case 'ebcdiccptr':
case 'ibm905':
return 'IBM905';
case 'cp918':
case 'csibm918':
case 'ebcdiccpar2':
case 'ibm918':
return 'IBM918';
case 'ccsid924':
case 'cp924':
case 'ebcdiclatin9euro':
case 'ibm924':
return 'IBM00924';
case 'cp1026':
case 'csibm1026':
case 'ibm1026':
return 'IBM1026';
case 'ibm1047':
return 'IBM1047';
case 'ccsid1140':
case 'cp1140':
case 'ebcdicus37euro':
case 'ibm1140':
return 'IBM01140';
case 'ccsid1141':
case 'cp1141':
case 'ebcdicde273euro':
case 'ibm1141':
return 'IBM01141';
case 'ccsid1142':
case 'cp1142':
case 'ebcdicdk277euro':
case 'ebcdicno277euro':
case 'ibm1142':
return 'IBM01142';
case 'ccsid1143':
case 'cp1143':
case 'ebcdicfi278euro':
case 'ebcdicse278euro':
case 'ibm1143':
return 'IBM01143';
case 'ccsid1144':
case 'cp1144':
case 'ebcdicit280euro':
case 'ibm1144':
return 'IBM01144';
case 'ccsid1145':
case 'cp1145':
case 'ebcdices284euro':
case 'ibm1145':
return 'IBM01145';
case 'ccsid1146':
case 'cp1146':
case 'ebcdicgb285euro':
case 'ibm1146':
return 'IBM01146';
case 'ccsid1147':
case 'cp1147':
case 'ebcdicfr297euro':
case 'ibm1147':
return 'IBM01147';
case 'ccsid1148':
case 'cp1148':
case 'ebcdicinternational500euro':
case 'ibm1148':
return 'IBM01148';
case 'ccsid1149':
case 'cp1149':
case 'ebcdicis871euro':
case 'ibm1149':
return 'IBM01149';
case 'csiso143iecp271':
case 'iecp271':
case 'isoir143':
return 'IEC_P27-1';
case 'csiso49inis':
case 'inis':
case 'isoir49':
return 'INIS';
case 'csiso50inis8':
case 'inis8':
case 'isoir50':
return 'INIS-8';
case 'csiso51iniscyrillic':
case 'iniscyrillic':
case 'isoir51':
return 'INIS-cyrillic';
case 'csinvariant':
case 'invariant':
return 'INVARIANT';
case 'iso2022cn':
return 'ISO-2022-CN';
case 'iso2022cnext':
return 'ISO-2022-CN-EXT';
case 'csiso2022jp':
case 'iso2022jp':
return 'ISO-2022-JP';
case 'csiso2022jp2':
case 'iso2022jp2':
return 'ISO-2022-JP-2';
case 'csiso2022kr':
case 'iso2022kr':
return 'ISO-2022-KR';
case 'cswindows30latin1':
case 'iso88591windows30latin1':
return 'ISO-8859-1-Windows-3.0-Latin-1';
case 'cswindows31latin1':
case 'iso88591windows31latin1':
return 'ISO-8859-1-Windows-3.1-Latin-1';
case 'csisolatin2':
case 'iso88592':
case 'iso885921987':
case 'isoir101':
case 'l2':
case 'latin2':
return 'ISO-8859-2';
case 'cswindows31latin2':
case 'iso88592windowslatin2':
return 'ISO-8859-2-Windows-Latin-2';
case 'csisolatin3':
case 'iso88593':
case 'iso885931988':
case 'isoir109':
case 'l3':
case 'latin3':
return 'ISO-8859-3';
case 'csisolatin4':
case 'iso88594':
case 'iso885941988':
case 'isoir110':
case 'l4':
case 'latin4':
return 'ISO-8859-4';
case 'csisolatincyrillic':
case 'cyrillic':
case 'iso88595':
case 'iso885951988':
case 'isoir144':
return 'ISO-8859-5';
case 'arabic':
case 'asmo708':
case 'csisolatinarabic':
case 'ecma114':
case 'iso88596':
case 'iso885961987':
case 'isoir127':
return 'ISO-8859-6';
case 'csiso88596e':
case 'iso88596e':
return 'ISO-8859-6-E';
case 'csiso88596i':
case 'iso88596i':
return 'ISO-8859-6-I';
case 'csisolatingreek':
case 'ecma118':
case 'elot928':
case 'greek':
case 'greek8':
case 'iso88597':
case 'iso885971987':
case 'isoir126':
return 'ISO-8859-7';
case 'csisolatinhebrew':
case 'hebrew':
case 'iso88598':
case 'iso885981988':
case 'isoir138':
return 'ISO-8859-8';
case 'csiso88598e':
case 'iso88598e':
return 'ISO-8859-8-E';
case 'csiso88598i':
case 'iso88598i':
return 'ISO-8859-8-I';
case 'cswindows31latin5':
case 'iso88599windowslatin5':
return 'ISO-8859-9-Windows-Latin-5';
case 'csisolatin6':
case 'iso885910':
case 'iso8859101992':
case 'isoir157':
case 'l6':
case 'latin6':
return 'ISO-8859-10';
case 'iso885913':
return 'ISO-8859-13';
case 'iso885914':
case 'iso8859141998':
case 'isoceltic':
case 'isoir199':
case 'l8':
case 'latin8':
return 'ISO-8859-14';
case 'iso885915':
case 'latin9':
return 'ISO-8859-15';
case 'iso885916':
case 'iso8859162001':
case 'isoir226':
case 'l10':
case 'latin10':
return 'ISO-8859-16';
case 'iso10646j1':
return 'ISO-10646-J-1';
case 'csunicode':
case 'iso10646ucs2':
return 'ISO-10646-UCS-2';
case 'csucs4':
case 'iso10646ucs4':
return 'ISO-10646-UCS-4';
case 'csunicodeascii':
case 'iso10646ucsbasic':
return 'ISO-10646-UCS-Basic';
case 'csunicodelatin1':
case 'iso10646':
case 'iso10646unicodelatin1':
return 'ISO-10646-Unicode-Latin1';
case 'csiso10646utf1':
case 'iso10646utf1':
return 'ISO-10646-UTF-1';
case 'csiso115481':
case 'iso115481':
case 'isotr115481':
return 'ISO-11548-1';
case 'csiso90':
case 'isoir90':
return 'iso-ir-90';
case 'csunicodeibm1261':
case 'isounicodeibm1261':
return 'ISO-Unicode-IBM-1261';
case 'csunicodeibm1264':
case 'isounicodeibm1264':
return 'ISO-Unicode-IBM-1264';
case 'csunicodeibm1265':
case 'isounicodeibm1265':
return 'ISO-Unicode-IBM-1265';
case 'csunicodeibm1268':
case 'isounicodeibm1268':
return 'ISO-Unicode-IBM-1268';
case 'csunicodeibm1276':
case 'isounicodeibm1276':
return 'ISO-Unicode-IBM-1276';
case 'csiso646basic1983':
case 'iso646basic1983':
case 'ref':
return 'ISO_646.basic:1983';
case 'csiso2intlrefversion':
case 'irv':
case 'iso646irv1983':
case 'isoir2':
return 'ISO_646.irv:1983';
case 'csiso2033':
case 'e13b':
case 'iso20331983':
case 'isoir98':
return 'ISO_2033-1983';
case 'csiso5427cyrillic':
case 'iso5427':
case 'isoir37':
return 'ISO_5427';
case 'iso5427cyrillic1981':
case 'iso54271981':
case 'isoir54':
return 'ISO_5427:1981';
case 'csiso5428greek':
case 'iso54281980':
case 'isoir55':
return 'ISO_5428:1980';
case 'csiso6937add':
case 'iso6937225':
case 'isoir152':
return 'ISO_6937-2-25';
case 'csisotextcomm':
case 'iso69372add':
case 'isoir142':
return 'ISO_6937-2-add';
case 'csiso8859supp':
case 'iso8859supp':
case 'isoir154':
case 'latin125':
return 'ISO_8859-supp';
case 'csiso10367box':
case 'iso10367box':
case 'isoir155':
return 'ISO_10367-box';
case 'csiso15italian':
case 'iso646it':
case 'isoir15':
case 'it':
return 'IT';
case 'csiso13jisc6220jp':
case 'isoir13':
case 'jisc62201969':
case 'jisc62201969jp':
case 'katakana':
case 'x2017':
return 'JIS_C6220-1969-jp';
case 'csiso14jisc6220ro':
case 'iso646jp':
case 'isoir14':
case 'jisc62201969ro':
case 'jp':
return 'JIS_C6220-1969-ro';
case 'csiso42jisc62261978':
case 'isoir42':
case 'jisc62261978':
return 'JIS_C6226-1978';
case 'csiso87jisx208':
case 'isoir87':
case 'jisc62261983':
case 'jisx2081983':
case 'x208':
return 'JIS_C6226-1983';
case 'csiso91jisc62291984a':
case 'isoir91':
case 'jisc62291984a':
case 'jpocra':
return 'JIS_C6229-1984-a';
case 'csiso92jisc62991984b':
case 'iso646jpocrb':
case 'isoir92':
case 'jisc62291984b':
case 'jpocrb':
return 'JIS_C6229-1984-b';
case 'csiso93jis62291984badd':
case 'isoir93':
case 'jisc62291984badd':
case 'jpocrbadd':
return 'JIS_C6229-1984-b-add';
case 'csiso94jis62291984hand':
case 'isoir94':
case 'jisc62291984hand':
case 'jpocrhand':
return 'JIS_C6229-1984-hand';
case 'csiso95jis62291984handadd':
case 'isoir95':
case 'jisc62291984handadd':
case 'jpocrhandadd':
return 'JIS_C6229-1984-hand-add';
case 'csiso96jisc62291984kana':
case 'isoir96':
case 'jisc62291984kana':
return 'JIS_C6229-1984-kana';
case 'csjisencoding':
case 'jisencoding':
return 'JIS_Encoding';
case 'cshalfwidthkatakana':
case 'jisx201':
case 'x201':
return 'JIS_X0201';
case 'csiso159jisx2121990':
case 'isoir159':
case 'jisx2121990':
case 'x212':
return 'JIS_X0212-1990';
case 'csiso141jusib1002':
case 'iso646yu':
case 'isoir141':
case 'js':
case 'jusib1002':
case 'yu':
return 'JUS_I.B1.002';
case 'csiso147macedonian':
case 'isoir147':
case 'jusib1003mac':
case 'macedonian':
return 'JUS_I.B1.003-mac';
case 'csiso146serbian':
case 'isoir146':
case 'jusib1003serb':
case 'serbian':
return 'JUS_I.B1.003-serb';
case 'koi7switched':
return 'KOI7-switched';
case 'cskoi8r':
case 'koi8r':
return 'KOI8-R';
case 'koi8u':
return 'KOI8-U';
case 'csksc5636':
case 'iso646kr':
case 'ksc5636':
return 'KSC5636';
case 'cskz1048':
case 'kz1048':
case 'rk1048':
case 'strk10482002':
return 'KZ-1048';
case 'csiso19latingreek':
case 'isoir19':
case 'latingreek':
return 'latin-greek';
case 'csiso27latingreek1':
case 'isoir27':
case 'latingreek1':
return 'Latin-greek-1';
case 'csiso158lap':
case 'isoir158':
case 'lap':
case 'latinlap':
return 'latin-lap';
case 'csmacintosh':
case 'mac':
case 'macintosh':
return 'macintosh';
case 'csmicrosoftpublishing':
case 'microsoftpublishing':
return 'Microsoft-Publishing';
case 'csmnem':
case 'mnem':
return 'MNEM';
case 'csmnemonic':
case 'mnemonic':
return 'MNEMONIC';
case 'csiso86hungarian':
case 'hu':
case 'iso646hu':
case 'isoir86':
case 'msz77953':
return 'MSZ_7795.3';
case 'csnatsdano':
case 'isoir91':
case 'natsdano':
return 'NATS-DANO';
case 'csnatsdanoadd':
case 'isoir92':
case 'natsdanoadd':
return 'NATS-DANO-ADD';
case 'csnatssefi':
case 'isoir81':
case 'natssefi':
return 'NATS-SEFI';
case 'csnatssefiadd':
case 'isoir82':
case 'natssefiadd':
return 'NATS-SEFI-ADD';
case 'csiso151cuba':
case 'cuba':
case 'iso646cu':
case 'isoir151':
case 'ncnc1081':
return 'NC_NC00-10:81';
case 'csiso69french':
case 'fr':
case 'iso646fr':
case 'isoir69':
case 'nfz62010':
return 'NF_Z_62-010';
case 'csiso25french':
case 'iso646fr1':
case 'isoir25':
case 'nfz620101973':
return 'NF_Z_62-010_(1973)';
case 'csiso60danishnorwegian':
case 'csiso60norwegian1':
case 'iso646no':
case 'isoir60':
case 'no':
case 'ns45511':
return 'NS_4551-1';
case 'csiso61norwegian2':
case 'iso646no2':
case 'isoir61':
case 'no2':
case 'ns45512':
return 'NS_4551-2';
case 'osdebcdicdf3irv':
return 'OSD_EBCDIC_DF03_IRV';
case 'osdebcdicdf41':
return 'OSD_EBCDIC_DF04_1';
case 'osdebcdicdf415':
return 'OSD_EBCDIC_DF04_15';
case 'cspc8danishnorwegian':
case 'pc8danishnorwegian':
return 'PC8-Danish-Norwegian';
case 'cspc8turkish':
case 'pc8turkish':
return 'PC8-Turkish';
case 'csiso16portuguese':
case 'iso646pt':
case 'isoir16':
case 'pt':
return 'PT';
case 'csiso84portuguese2':
case 'iso646pt2':
case 'isoir84':
case 'pt2':
return 'PT2';
case 'cp154':
case 'csptcp154':
case 'cyrillicasian':
case 'pt154':
case 'ptcp154':
return 'PTCP154';
case 'scsu':
return 'SCSU';
case 'csiso10swedish':
case 'fi':
case 'iso646fi':
case 'iso646se':
case 'isoir10':
case 'se':
case 'sen850200b':
return 'SEN_850200_B';
case 'csiso11swedishfornames':
case 'iso646se2':
case 'isoir11':
case 'se2':
case 'sen850200c':
return 'SEN_850200_C';
case 'csiso102t617bit':
case 'isoir102':
case 't617bit':
return 'T.61-7bit';
case 'csiso103t618bit':
case 'isoir103':
case 't61':
case 't618bit':
return 'T.61-8bit';
case 'csiso128t101g2':
case 'isoir128':
case 't101g2':
return 'T.101-G2';
case 'cstscii':
case 'tscii':
return 'TSCII';
case 'csunicode11':
case 'unicode11':
return 'UNICODE-1-1';
case 'csunicode11utf7':
case 'unicode11utf7':
return 'UNICODE-1-1-UTF-7';
case 'csunknown8bit':
case 'unknown8bit':
return 'UNKNOWN-8BIT';
case 'ansix341968':
case 'ansix341986':
case 'ascii':
case 'cp367':
case 'csascii':
case 'ibm367':
case 'iso646irv1991':
case 'iso646us':
case 'isoir6':
case 'us':
case 'usascii':
return 'US-ASCII';
case 'csusdk':
case 'usdk':
return 'us-dk';
case 'utf7':
return 'UTF-7';
case 'utf8':
return 'UTF-8';
case 'utf16':
return 'UTF-16';
case 'utf16be':
return 'UTF-16BE';
case 'utf16le':
return 'UTF-16LE';
case 'utf32':
return 'UTF-32';
case 'utf32be':
return 'UTF-32BE';
case 'utf32le':
return 'UTF-32LE';
case 'csventurainternational':
case 'venturainternational':
return 'Ventura-International';
case 'csventuramath':
case 'venturamath':
return 'Ventura-Math';
case 'csventuraus':
case 'venturaus':
return 'Ventura-US';
case 'csiso70videotexsupp1':
case 'isoir70':
case 'videotexsuppl':
return 'videotex-suppl';
case 'csviqr':
case 'viqr':
return 'VIQR';
case 'csviscii':
case 'viscii':
return 'VISCII';
case 'csshiftjis':
case 'cswindows31j':
case 'mskanji':
case 'shiftjis':
case 'windows31j':
return 'Windows-31J';
case 'iso885911':
case 'tis620':
return 'windows-874';
case 'cseuckr':
case 'csksc56011987':
case 'euckr':
case 'isoir149':
case 'korean':
case 'ksc5601':
case 'ksc56011987':
case 'ksc56011989':
case 'windows949':
return 'windows-949';
case 'windows1250':
return 'windows-1250';
case 'windows1251':
return 'windows-1251';
case 'cp819':
case 'csisolatin1':
case 'ibm819':
case 'iso88591':
case 'iso885911987':
case 'isoir100':
case 'l1':
case 'latin1':
case 'windows1252':
return 'windows-1252';
case 'windows1253':
return 'windows-1253';
case 'csisolatin5':
case 'iso88599':
case 'iso885991989':
case 'isoir148':
case 'l5':
case 'latin5':
case 'windows1254':
return 'windows-1254';
case 'windows1255':
return 'windows-1255';
case 'windows1256':
return 'windows-1256';
case 'windows1257':
return 'windows-1257';
case 'windows1258':
return 'windows-1258';
default:
return $charset;
}
}
public static function get_curl_version()
{
if (is_array($curl = curl_version())) {
$curl = $curl['version'];
} elseif (substr($curl, 0, 5) === 'curl/') {
$curl = substr($curl, 5, strcspn($curl, "\x09\x0A\x0B\x0C\x0D", 5));
} elseif (substr($curl, 0, 8) === 'libcurl/') {
$curl = substr($curl, 8, strcspn($curl, "\x09\x0A\x0B\x0C\x0D", 8));
} else {
$curl = 0;
}
return $curl;
}
/**
* Strip HTML comments
*
* @param string $data Data to strip comments from
* @return string Comment stripped string
*/
public static function strip_comments($data)
{
$output = '';
while (($start = strpos($data, '<!--')) !== false) {
$output .= substr($data, 0, $start);
if (($end = strpos($data, '-->', $start)) !== false) {
$data = substr_replace($data, '', 0, $end + 3);
} else {
$data = '';
}
}
return $output . $data;
}
public static function parse_date($dt)
{
$parser = \SimplePie\Parse\Date::get();
return $parser->parse($dt);
}
/**
* Decode HTML entities
*
* @deprecated since SimplePie 1.3, use DOMDocument instead
* @param string $data Input data
* @return string Output data
*/
public static function entities_decode($data)
{
// trigger_error(sprintf('Using method "' . __METHOD__ . '" is deprecated since SimplePie 1.3, use "DOMDocument" instead.'), \E_USER_DEPRECATED);
$decoder = new \SimplePie_Decode_HTML_Entities($data);
return $decoder->parse();
}
/**
* Remove RFC822 comments
*
* @param string $data Data to strip comments from
* @return string Comment stripped string
*/
public static function uncomment_rfc822($string)
{
$string = (string) $string;
$position = 0;
$length = strlen($string);
$depth = 0;
$output = '';
while ($position < $length && ($pos = strpos($string, '(', $position)) !== false) {
$output .= substr($string, $position, $pos - $position);
$position = $pos + 1;
if ($string[$pos - 1] !== '\\') {
$depth++;
while ($depth && $position < $length) {
$position += strcspn($string, '()', $position);
if ($string[$position - 1] === '\\') {
$position++;
continue;
} elseif (isset($string[$position])) {
switch ($string[$position]) {
case '(':
$depth++;
break;
case ')':
$depth--;
break;
}
$position++;
} else {
break;
}
}
} else {
$output .= '(';
}
}
$output .= substr($string, $position);
return $output;
}
public static function parse_mime($mime)
{
if (($pos = strpos($mime, ';')) === false) {
return trim($mime);
}
return trim(substr($mime, 0, $pos));
}
public static function atom_03_construct_type($attribs)
{
if (isset($attribs['']['mode']) && strtolower(trim($attribs['']['mode'])) === 'base64') {
$mode = \SimplePie\SimplePie::CONSTRUCT_BASE64;
} else {
$mode = \SimplePie\SimplePie::CONSTRUCT_NONE;
}
if (isset($attribs['']['type'])) {
switch (strtolower(trim($attribs['']['type']))) {
case 'text':
case 'text/plain':
return \SimplePie\SimplePie::CONSTRUCT_TEXT | $mode;
case 'html':
case 'text/html':
return \SimplePie\SimplePie::CONSTRUCT_HTML | $mode;
case 'xhtml':
case 'application/xhtml+xml':
return \SimplePie\SimplePie::CONSTRUCT_XHTML | $mode;
default:
return \SimplePie\SimplePie::CONSTRUCT_NONE | $mode;
}
}
return \SimplePie\SimplePie::CONSTRUCT_TEXT | $mode;
}
public static function atom_10_construct_type($attribs)
{
if (isset($attribs['']['type'])) {
switch (strtolower(trim($attribs['']['type']))) {
case 'text':
return \SimplePie\SimplePie::CONSTRUCT_TEXT;
case 'html':
return \SimplePie\SimplePie::CONSTRUCT_HTML;
case 'xhtml':
return \SimplePie\SimplePie::CONSTRUCT_XHTML;
default:
return \SimplePie\SimplePie::CONSTRUCT_NONE;
}
}
return \SimplePie\SimplePie::CONSTRUCT_TEXT;
}
public static function atom_10_content_construct_type($attribs)
{
if (isset($attribs['']['type'])) {
$type = strtolower(trim($attribs['']['type']));
switch ($type) {
case 'text':
return \SimplePie\SimplePie::CONSTRUCT_TEXT;
case 'html':
return \SimplePie\SimplePie::CONSTRUCT_HTML;
case 'xhtml':
return \SimplePie\SimplePie::CONSTRUCT_XHTML;
}
if (in_array(substr($type, -4), ['+xml', '/xml']) || substr($type, 0, 5) === 'text/') {
return \SimplePie\SimplePie::CONSTRUCT_NONE;
} else {
return \SimplePie\SimplePie::CONSTRUCT_BASE64;
}
}
return \SimplePie\SimplePie::CONSTRUCT_TEXT;
}
public static function is_isegment_nz_nc($string)
{
return (bool) preg_match('/^([A-Za-z0-9\-._~\x{A0}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}\x{40000}-\x{4FFFD}\x{50000}-\x{5FFFD}\x{60000}-\x{6FFFD}\x{70000}-\x{7FFFD}\x{80000}-\x{8FFFD}\x{90000}-\x{9FFFD}\x{A0000}-\x{AFFFD}\x{B0000}-\x{BFFFD}\x{C0000}-\x{CFFFD}\x{D0000}-\x{DFFFD}\x{E1000}-\x{EFFFD}!$&\'()*+,;=@]|(%[0-9ABCDEF]{2}))+$/u', $string);
}
public static function space_separated_tokens($string)
{
$space_characters = "\x20\x09\x0A\x0B\x0C\x0D";
$string_length = strlen($string);
$position = strspn($string, $space_characters);
$tokens = [];
while ($position < $string_length) {
$len = strcspn($string, $space_characters, $position);
$tokens[] = substr($string, $position, $len);
$position += $len;
$position += strspn($string, $space_characters, $position);
}
return $tokens;
}
/**
* Converts a unicode codepoint to a UTF-8 character
*
* @static
* @param int $codepoint Unicode codepoint
* @return string UTF-8 character
*/
public static function codepoint_to_utf8($codepoint)
{
$codepoint = (int) $codepoint;
if ($codepoint < 0) {
return false;
} elseif ($codepoint <= 0x7f) {
return chr($codepoint);
} elseif ($codepoint <= 0x7ff) {
return chr(0xc0 | ($codepoint >> 6)) . chr(0x80 | ($codepoint & 0x3f));
} elseif ($codepoint <= 0xffff) {
return chr(0xe0 | ($codepoint >> 12)) . chr(0x80 | (($codepoint >> 6) & 0x3f)) . chr(0x80 | ($codepoint & 0x3f));
} elseif ($codepoint <= 0x10ffff) {
return chr(0xf0 | ($codepoint >> 18)) . chr(0x80 | (($codepoint >> 12) & 0x3f)) . chr(0x80 | (($codepoint >> 6) & 0x3f)) . chr(0x80 | ($codepoint & 0x3f));
}
// U+FFFD REPLACEMENT CHARACTER
return "\xEF\xBF\xBD";
}
/**
* Similar to parse_str()
*
* Returns an associative array of name/value pairs, where the value is an
* array of values that have used the same name
*
* @static
* @param string $str The input string.
* @return array
*/
public static function parse_str($str)
{
$return = [];
$str = explode('&', $str);
foreach ($str as $section) {
if (strpos($section, '=') !== false) {
[$name, $value] = explode('=', $section, 2);
$return[urldecode($name)][] = urldecode($value);
} else {
$return[urldecode($section)][] = null;
}
}
return $return;
}
/**
* Detect XML encoding, as per XML 1.0 Appendix F.1
*
* @todo Add support for EBCDIC
* @param string $data XML data
* @param \SimplePie\Registry $registry Class registry
* @return array Possible encodings
*/
public static function xml_encoding($data, $registry)
{
// UTF-32 Big Endian BOM
if (substr($data, 0, 4) === "\x00\x00\xFE\xFF") {
$encoding[] = 'UTF-32BE';
}
// UTF-32 Little Endian BOM
elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00") {
$encoding[] = 'UTF-32LE';
}
// UTF-16 Big Endian BOM
elseif (substr($data, 0, 2) === "\xFE\xFF") {
$encoding[] = 'UTF-16BE';
}
// UTF-16 Little Endian BOM
elseif (substr($data, 0, 2) === "\xFF\xFE") {
$encoding[] = 'UTF-16LE';
}
// UTF-8 BOM
elseif (substr($data, 0, 3) === "\xEF\xBB\xBF") {
$encoding[] = 'UTF-8';
}
// UTF-32 Big Endian Without BOM
elseif (substr($data, 0, 20) === "\x00\x00\x00\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C") {
if ($pos = strpos($data, "\x00\x00\x00\x3F\x00\x00\x00\x3E")) {
$parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32BE', 'UTF-8')]);
if ($parser->parse()) {
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-32BE';
}
// UTF-32 Little Endian Without BOM
elseif (substr($data, 0, 20) === "\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C\x00\x00\x00") {
if ($pos = strpos($data, "\x3F\x00\x00\x00\x3E\x00\x00\x00")) {
$parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32LE', 'UTF-8')]);
if ($parser->parse()) {
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-32LE';
}
// UTF-16 Big Endian Without BOM
elseif (substr($data, 0, 10) === "\x00\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C") {
if ($pos = strpos($data, "\x00\x3F\x00\x3E")) {
$parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16BE', 'UTF-8')]);
if ($parser->parse()) {
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-16BE';
}
// UTF-16 Little Endian Without BOM
elseif (substr($data, 0, 10) === "\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C\x00") {
if ($pos = strpos($data, "\x3F\x00\x3E\x00")) {
$parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16LE', 'UTF-8')]);
if ($parser->parse()) {
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-16LE';
}
// US-ASCII (or superset)
elseif (substr($data, 0, 5) === "\x3C\x3F\x78\x6D\x6C") {
if ($pos = strpos($data, "\x3F\x3E")) {
$parser = $registry->create(Parser::class, [substr($data, 5, $pos - 5)]);
if ($parser->parse()) {
$encoding[] = $parser->encoding;
}
}
$encoding[] = 'UTF-8';
}
// Fallback to UTF-8
else {
$encoding[] = 'UTF-8';
}
return $encoding;
}
public static function output_javascript()
{
if (function_exists('ob_gzhandler')) {
ob_start('ob_gzhandler');
}
header('Content-type: text/javascript; charset: UTF-8');
header('Cache-Control: must-revalidate');
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 604800) . ' GMT'); // 7 days
$body = <<<END
function embed_quicktime(type, bgcolor, width, height, link, placeholder, loop) {
if (placeholder != '') {
document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" href="'+link+'" src="'+placeholder+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="false" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
}
else {
document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" src="'+link+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="true" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
}
}
function embed_flash(bgcolor, width, height, link, loop, type) {
document.writeln('<embed src="'+link+'" pluginspage="http://www.macromedia.com/go/getflashplayer" type="'+type+'" quality="high" width="'+width+'" height="'+height+'" bgcolor="'+bgcolor+'" loop="'+loop+'"></embed>');
}
function embed_flv(width, height, link, placeholder, loop, player) {
document.writeln('<embed src="'+player+'" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" quality="high" width="'+width+'" height="'+height+'" wmode="transparent" flashvars="file='+link+'&autostart=false&repeat='+loop+'&showdigits=true&showfsbutton=false"></embed>');
}
function embed_wmedia(width, height, link) {
document.writeln('<embed type="application/x-mplayer2" src="'+link+'" autosize="1" width="'+width+'" height="'+height+'" showcontrols="1" showstatusbar="0" showdisplay="0" autostart="0"></embed>');
}
END;
echo $body;
}
/**
* Get the SimplePie build timestamp
*
* Uses the git index if it exists, otherwise uses the modification time
* of the newest file.
*/
public static function get_build()
{
if (static::$SIMPLEPIE_BUILD !== null) {
return static::$SIMPLEPIE_BUILD;
}
$root = dirname(__FILE__, 2);
if (file_exists($root . '/.git/index')) {
static::$SIMPLEPIE_BUILD = filemtime($root . '/.git/index');
return static::$SIMPLEPIE_BUILD;
} elseif (file_exists($root . '/SimplePie')) {
$time = 0;
foreach (glob($root . '/SimplePie/*.php') as $file) {
if (($mtime = filemtime($file)) > $time) {
$time = $mtime;
}
}
static::$SIMPLEPIE_BUILD = $time;
return static::$SIMPLEPIE_BUILD;
} elseif (file_exists(dirname(__FILE__) . '/Core.php')) {
static::$SIMPLEPIE_BUILD = filemtime(dirname(__FILE__) . '/Core.php');
return static::$SIMPLEPIE_BUILD;
}
static::$SIMPLEPIE_BUILD = filemtime(__FILE__);
return static::$SIMPLEPIE_BUILD;
}
/**
* Get the default user agent string
*
* @return string
*/
public static function get_default_useragent()
{
return \SimplePie\SimplePie::NAME . '/' . \SimplePie\SimplePie::VERSION . ' (Feed Parser; ' . \SimplePie\SimplePie::URL . '; Allow like Gecko) Build/' . static::get_build();
}
/**
* Format debugging information
*/
public static function debug(&$sp)
{
$info = 'SimplePie ' . \SimplePie\SimplePie::VERSION . ' Build ' . static::get_build() . "\n";
$info .= 'PHP ' . PHP_VERSION . "\n";
if ($sp->error() !== null) {
$info .= 'Error occurred: ' . $sp->error() . "\n";
} else {
$info .= "No error found.\n";
}
$info .= "Extensions:\n";
$extensions = ['pcre', 'curl', 'zlib', 'mbstring', 'iconv', 'xmlreader', 'xml'];
foreach ($extensions as $ext) {
if (extension_loaded($ext)) {
$info .= " $ext loaded\n";
switch ($ext) {
case 'pcre':
$info .= ' Version ' . PCRE_VERSION . "\n";
break;
case 'curl':
$version = curl_version();
$info .= ' Version ' . $version['version'] . "\n";
break;
case 'mbstring':
$info .= ' Overloading: ' . mb_get_info('func_overload') . "\n";
break;
case 'iconv':
$info .= ' Version ' . ICONV_VERSION . "\n";
break;
case 'xml':
$info .= ' Version ' . LIBXML_DOTTED_VERSION . "\n";
break;
}
} else {
$info .= " $ext not loaded\n";
}
}
return $info;
}
public static function silence_errors($num, $str)
{
// No-op
}
/**
* Sanitize a URL by removing HTTP credentials.
* @param string $url the URL to sanitize.
* @return string the same URL without HTTP credentials.
*/
public static function url_remove_credentials($url)
{
return preg_replace('#^(https?://)[^/:@]+:[^/:@]+@#i', '$1', $url);
}
}
class_alias('SimplePie\Misc', 'SimplePie_Misc', false);
كتبت شروق عارف
في السنوات الأخيرة أصبحنا نلجا الي الذكاء الاصطناعي في كافة أمور حياتنا وذلك لقدرته علي توفير حلول سريعه وانجاز المهام بسرعه كبيرة ولكن علي الرغم من المساعدة الضخمة التي يقدمها الذكاء الاصطناعي لنا أصبحنا نغفل عن أمر مهم وهو هل اعتمادنا الكامل على الذكاء الاصطناعي قد يؤدي إلى تراجع قدرتنا الذهنية
الذكاء الاصطناعي التوليدي سلاح ذو حدين
أجرت شركة مايكروسوفت بالتعاون مع جامعة كارنيجي ميلون دراسة حديثة تقدم لنا إجابة حول تأثير الذكاء الاصطناعي التوليدي على المستخدمين حيث أشارت
الدراسة إلى أن هذا النوع من الذكاء الاصطناعي يمكن أن يساعد في إنشاء محتوى مثل النصوص، الصور، الموسيقى، والفيديوهات وذلك باستخدام تقنيات كالشبكات العصبية التوليدية العميقة وذلك النوع قد يمثل سلاح ذو حدين فقد يؤدي الي تدني القدرات المعرفية او الي تقديم فوائد عديدة ويحدث ذلك حسب إستخدمنا ففي حالة اعتمدنا على الذكاء الاصطناعي التوليدي بشكل مستمر سوف يصل بنا الأمر لجعله يفكر بالنيابة عنا و الجدير بالذكر أن الباحثين يمتعون عن قول أن أدوات الذكاء الاصطناعي التوليدي قد تجعلك أكثر غباء لكن الدراسة أوضحت أن الاعتماد الكامل على أدوات الذكاء الاصطناعي التوليد يمكن أن تضعف قدرتنا على حل المشكلات التي قد تواجهنا في المستقبل وعلى جانب اخر يمكن أن يكون الذكاء الاصطناعي مفيد للغاية ويحدث ذلك عند استخدامه بطريقة مناسبة كأداة مساعدة وليس كبديل للعقل
كيف نحافظ على عقولنا وسط سيطرة الآلات
لاستخدام الذكاء الاصطناعي التوليدي بطريقة صحيحة علينا اتباع عدة خطوات أساسية منها المحافظة على خصوصية بياناتنا بالإضافة إلى عدم مشاركته في أمور تتعلق بحياتنا الشخصية كما يجب علينا استخدام الذكاء الاصطناعي كأداة مساعدة لإنجاز بعض المهام وليس كبديل للعقل فعلى سبيل المثال عند الاستعانة بالذكاء الاصطناعي لإنجاز مهمة معينة يمكننا إضافة تعديلاتنا الخاصة كما يجب علينا مراجعة دقة المعلومات المقدمة بواسطة الذكاء الاصطناعي لأن من الممكن أن تكون مندثه أو غير صحيحة
اوضح الدكتور إبراهيم عبدالله أستاذ تكنولوجيا المعلومات في المعهد العالي للدراسات النوعية في مصر ومعهد البيان للعلوم والتكنولوجيا في الإمارات أن الاعتماد المتزايد على الذكاء الاصطناعي في حياتنا اليومية يحمل في طياته جانب سلبي واخر ايجابي فمن الناحيه السلبية يوجد العديد من التخصصات التي قد تندثر مثل خدمة العملاء والطب وغيرها من التخصصات التي قد تختفي
كما قد يقل والإبداع والابتكار بشكل ملحوظ
وعلي الجانب الإيجابي الذكاء الاصطناعي سهل الحصول علي افكار غير متناهيه
كما أكد دكتور إبراهيم علي ضرورة إعادة تصميم المناهج الدراسية حتي نكون قادرين علي انتاج الذكاء الاصطناعي وليس فقط مستخدمين كما وجه نصيحة شديدة اللهجة للطلاب الذي تعتمد بشكل كلي علي الذكاء الاصطناعي مؤكد أن ذلك سوف يهدم قدرتهم علي البحث والإنتاج و سيضعف قدراتهم كأفراد بشرية على أعمار عقولهم
لفت الدكتور إبراهيم نظرنا الي إحد إخطر المشكلات التي قد تواجهنا في المستقبل ان الذكاء الاصطناعي يدرك نفسه ويشعر بوجوده ويتحكم في الناس وقراراتهم لصالح مجموعه من الأشخاص او الشراكات او لصالحه هو شخصي
قال الدكتور كريم محمود أستاذ مساعد الذكاء الاصطناعي في معهد ا البيان للعلوم والتكنولوجيا إن الذكاء الاصطناعي التوليدي يمثل فرصة فريدة لتعزيز الإبداع البشري لكنه يحمل في طياته مخاطر أهمها تقليل الاعتماد على العقل والتفكير النقدي وذلك في حالة استخدم بشكل مفرط لذلك من الضروري وضع إطار تنظيمي وتعليمي يوجه الاستخدام الأمثل لهذه الأدوات بحيث تظل مساعدة وليست بديل للعقل والتفكير
و يبقي الذكاء الاصطناعي التوليدي سلاح مزدوج يمكن أن يوسع أفاق الإبداع والابتكار لدينا أو قد يؤدي إلى تراجع قدراتنا الإبداعية لذلك علينا أن ندرك أن الذكاء الاصطناعي في جميع أشكاله أداة مساعدة وليست بديل عن العقل كما يجب علينا استخدامه بحكمة لتحقيق التقدم دون الإغفال عن دورنا كأفراد بشرية في التفكير والابتكار
